Footwear insoles

Abstract

The present invention relates to a footwear insole, which comprises a body 10 formed in a "U" shape that encases the heel and has both ends located in the middle of the foot, a concave shape that encases the heel and the rear side, the height of the sides decreasing as it approaches both ends, and a shape that flares outward in a plan view, and a cushioning material 20 disposed inside the body 10, which is placed inside the footwear to completely block the space between the foot and the footwear, firmly hold the foot so that it does not sway from side to side, preventing injuries to the feet and other parts of the body during exercise and improving the effectiveness of exercise.

Description

[Technical Field]

[0001] The present invention relates to an insole for footwear, and more particularly to an insole for footwear that completely blocks the space between the foot and the footwear and firmly holds the foot so that it does not sway from side to side, thereby preventing foot injuries during daily life or exercise and improving exercise effectiveness. [Background technology]

[0002] The feet have the function of distributing the weight of the body and maintaining balance, so reducing the impact of the weight of the body on the feet has beneficial effects such as protecting joints such as the legs and spine and improving blood flow.

[0003] This allows people to wear footwear that protects the feet while dispersing the load, and with recent technological developments, a wide variety of footwear is now manufactured, including those for walking, running, and indoor exercise.

[0004] However, footwear is almost always mass-produced in a standardized state, and even if it is customized (made-to-order), it is difficult to measure every part of the foot when manufacturing the footwear. Furthermore, since the width, length, and thickness of each human foot vary, even if you select footwear that fits you perfectly or have it customized, there is a risk that the width or thickness between the footwear and your foot will not fit you perfectly. In addition, the flexibility between the side of the footwear and the sole (bottom of the foot) and the side may cause a space to form between the inside of the footwear and the outside of the foot, which can cause your feet to not fit properly in the footwear when you are doing daily activities or exercising, resulting in the phenomenon of them moving from side to side within the footwear.

[0005] In this way, when the foot cannot maintain correct posture and sways from side to side, the slight swaying of the ankle joint causes swaying of various joints in the body, such as the knee joint, hip joint, and spine, which can cause muscle pain and joint pain throughout the body, and in severe cases, can lead to sprains, reducing the effectiveness of exercise.

[0006] For example, when doing exercises such as squats while holding a heavy object in one's hands, the soles of the feet move back and forth and side to side repeatedly in the process of sitting and standing, which can cause instability and lead to injuries to the ankles, knees or hip joints. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Korean Patent Publication No. 10-2004-0004293 [Patent Document 2] Korean Patent Registration No. 10-2238244 Summary of the Invention [Problem to be solved by the invention]

[0008] The object of the present invention to solve the above problems is to provide an insole for footwear that completely blocks the space (gap) between the foot and the footwear and firmly holds the foot so that it does not sway from side to side, thereby preventing foot injuries during daily life and exercise and improving exercise effectiveness.

[0009] Another object of the present invention is to enable the insole to be used with any type of footwear and to prevent the insole from moving during use. [Means for solving the problem]

[0010] The feature of the present invention for achieving the above object is that it is a footwear insole comprising a body formed in a "U" shape, concavely formed to encase the heel and rear side, and formed in a shape that widens outward in a plan view as it progresses toward both ends, and cushioning material disposed inside the body, and when placed on footwear, the "U" shaped, widened ends allow both ends to contract inward due to their elasticity, making it easy to insert, and after insertion, the contracted parts return to their original state, engaging with and fixing to the side of the footwear, completely blocking the space between the inside surface of the footwear and the outside surface of the foot, preventing the foot from swaying from side to side, preventing safety accidents, and improving exercise effectiveness.

[0011] In the above, both ends of the body are formed in a curved shape that spreads outward when viewed from above, so that when the body is placed on footwear, the curved portions engage with the side cushions of the footwear to prevent it from moving forward, or protrusions are formed on the sides near both ends of the body, or knurling is applied to strengthen the positioning of the body inside the footwear.

[0012] In addition, both ends of the body are formed to be inclined downward when viewed from the side, so that when placed inside the footwear, the downward-facing ends dig into the insole that is basically placed inside the footwear, preventing a protruding feeling, i.e., an uncomfortable feeling (foreign texture), from occurring at the part where the front part of the foot that comes into contact with the insole and the insole of the footwear of the present invention are connected.

[0013] The side of the body that corresponds to the outside of the foot (hereinafter referred to as the outer arch) is formed to be higher than the side of the body that corresponds to the inside of the foot (hereinafter referred to as the inner arch), so that when weight shifts to the outside of the foot, such as when hitting a golf ball, the outer arch forms a wall that firmly supports the foot even when weight shifts, helping to shift weight.Furthermore, by forming the outer arch even higher, the knee is pulled inward, which not only has the effect of correcting bow legs but also provides a sense of stability in sports posture. [Effects of the Invention]

[0014] According to the present invention having the above-mentioned configuration, the insole of the footwear is placed inside the footwear to completely block the space between the foot and the footwear, and firmly holds the foot so that it does not sway from side to side, thereby preventing injuries to the feet and other parts of the body during daily life and exercise, and improving the effectiveness of exercise.

[0015] For example, when doing exercises such as squats while holding a heavy object in your hands, even if you repeatedly sit and stand, the insole of the footwear of the present invention will fixate the sole of your foot, giving you a sense of stability, improving the effectiveness of your exercise and preventing injury during exercise.

[0016] In addition, since the insole of the above-mentioned footwear is formed in a U-shape and has elasticity, when the insole for footwear is put into the footwear and the footwear is worn, the entire insole contracts toward the center of the foot in the longitudinal direction due to the weight of the user, making it feel as if the foot is being firmly held, as if receiving a massage, and has the effect of being excellent in wearing comfort.

[0017] Additionally, because the inner arch is lower than the outer arch, it holds your feet comfortably even during extended exercise, such as playing 18 holes of golf.

[0018] In addition, since the present invention can be applied to footwear of any size with a single product, it eliminates the need to purchase each size in order to reduce SKUs (Sock Keeping Units, the "unit for counting the minimum number of items" in inventory management), and has the advantage of being usable by both men and women. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a front perspective view of an insole of a footwear according to the present invention; [Figure 2] 1 is a perspective view of a rear side of an insole of a footwear according to the present invention; [Figure 3] 1 is a plan view of an insole of footwear according to the present invention. [Figure 4] 1 is a rear view of an insole of footwear according to the present invention. [Figure 5] 1 is a side view of an insole of footwear according to the present invention. [Figure 6] 1 is a diagram showing an example of dimensions of an insole of footwear according to the present invention. [Figure 7] 1 is a diagram showing an example of dimensions of an insole of footwear according to the present invention. [Figure 8] 1 is a diagram showing an example of dimensions of an insole of footwear according to the present invention. [Figure 9] 1 is a diagram showing an example of wearing an insole of footwear according to the present invention. [Figure 10] 1 is a diagram showing an example of wearing an insole of footwear according to the present invention. [Figure 11] 1 is a diagram showing an example of wearing an insole of footwear according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0021] As shown in Figures 1 to 5, the insole of footwear according to the present invention comprises a body 10 which is formed concavely to encase the heel and the sides of the foot, and which is formed in a "U" shape, with the height of the sides decreasing towards both ends and flaring outward in a planar view, and a cushioning material 20 arranged inside the body 10.

[0022] In the above, the body 10 is molded from a hard synthetic resin or the like, and both ends A are formed to expand outward in a plan view as shown in Figure 3 and to have an outwardly bent shape, so that when the body is placed on footwear, the bent portions catch on the sides of the footwear and prevent it from moving forward.

[0023] In addition, the outer surfaces of the body 10 near both ends are formed with anti-slip treatments such as forming protrusions or knurling, although this is not shown, so that the body can be kept placed inside the footwear without slipping forward.

[0024] In addition, as shown in Figures 4 and 5, both ends A of the body 10 are formed to slope downward when viewed from the side, so that when the body is placed inside the footwear, the downward-facing ends dig into the insole inside the footwear, preventing a protruding feeling, i.e., an uncomfortable feeling (stranger feeling), from occurring at the part where the front part of the foot that comes into contact with the insole and the insole of the footwear of the present invention are connected.

[0025] As shown in Figure 5, the side surface S1 of the body 10 that corresponds to the outside of the foot (hereinafter referred to as the outer arch) is formed to be higher than the side surface S2 of the body that corresponds to the inside of the foot (hereinafter referred to as the inner arch), and the inner surface of the outer arch is formed to be more inclined than the inner surface of the inner arch, so that when weight shifts to the outside of the foot, such as when hitting a golf ball, the outer arch forms a wall that firmly supports the foot even when weight shifts, helping to shift weight.Furthermore, by forming the outer arch even higher, the knee is pulled inward, which not only has the effect of correcting bow legs but also provides a sense of stability in sports posture.

[0026] Additionally, the body 10 or cushioning material 20 is formed to correspond to the shape of the sole of the foot, specifically, the concave arch portion B of the foot is formed to correspond to this shape.

[0027] In addition, the body 10 and the cushioning material 20 are formed with a notch groove in the longitudinal direction to form a "U" shape as a whole, and in this case, the groove is formed wider in the heel portion to increase the area where the sole of the heel comes into contact with the insole of the footwear, thereby providing a more stable fit.

[0028] In this embodiment of the present invention, as shown in Figures 6 and 7, the body 10 has a front-to-back length of 100 to 200 mm (147 mm in this embodiment of the present invention), a height from the bottom of the heel to the top of 5 to 50 mm (22.5 mm in this embodiment of the present invention), the downward-facing front ends of both ends of the body are formed to be inclined from the bottom of the heel by 0 to 15 degrees (7.5 degrees in this embodiment of the present invention), the width in a plan view is 50 to 85 mm (73 mm in this embodiment of the present invention) at the heel and 60 to 120 mm (88 mm in this embodiment of the present invention) at both ends, and the part of the lateral part of the foot that bends outward is configured to bend at an angle of 0 to 15 degrees (5.5 degrees in this embodiment of the present invention).

[0029] As shown in FIG. 8, the angle of the concave portion on the medial side is formed so that the sole on the lateral side of the foot is inclined by 0 to 80° (42° in this embodiment of the present invention), and the sole on the medial side of the foot is inclined by 0 to 60° (22° in this embodiment of the present invention).

[0030] According to the present invention configured as described above, when the mat is placed on footwear, its outwardly flared ends create its own elasticity, so that, as shown in Figure 9, both ends A can be folded inward as shown in light gray and inserted into the footwear, making it easy to place.After insertion, the folded parts return to their original state, and the flexed sides engage with the sides of the footwear, securing the mat in place so that it does not slip forward even when placed only at the rear.

[0031] When the insole is placed in the footwear, both ends are formed to slope downward, creating a space between the insole and the bottom of the footwear, as shown in the upper part of Figure 10. When the user then puts on the footwear, the load presses the insole as shown in the lower part of Figure 10, causing the deflected both ends A to dig into the bottom of the footwear, and the remaining part to be in tight contact with the bottom of the footwear.

[0032] Furthermore, when a user puts on the footwear, as shown by the red arrow in Figure 11, the insole of the footwear of the present invention contracts toward the center, i.e., the expanded central portion, due to the load. As a result, as shown by the blue arrow in Figure 11, both sides are tightly attached to the inside, and not only the heel but also both sides are tightly attached to the insole of the footwear, giving the user the feeling that the foot is being held firmly, as if receiving a massage.

[0033] As a result, when the present invention is placed on footwear and worn, it completely blocks the space (gap) between the inside surface of the footwear and the outside surface of the foot, preventing the foot from swinging from side to side, preventing safety accidents and improving exercise effectiveness.

[0034] In addition, the insole of the footwear supports the rear part of the footwear, and when putting on the footwear, the insole of the footwear supports the rear part of the footwear as if using a spatula to support the rear part, making it easy to put on the footwear. [Explanation of symbols]

[0035] 10 Body 20 Cushioning material

Claims

1. A body (10) formed in a "U" shape, concavely formed to enclose the heel and rear side, and formed so that the height of the side decreases as it progresses toward both ends (A); a cushioning material (20) disposed inside the body (10); The present invention is configured to include: The both ends (A) of the body (10) are formed to have a shape that is expanded outward in a plan view, and the both ends (A) are formed to have a shape that is bent outward, When placed on footwear, the outwardly bent portions of both ends (A) engage with the side cushions of the footwear to prevent the insole from moving forward.

2. 2. The insole for footwear according to claim 1, wherein both ends (A) of the body (10) are formed to be inclined downward when viewed from the side.

3. 2. The insole of claim 1, wherein the side of the body (10) corresponding to the lateral side of the foot (hereinafter referred to as the lateral arch) (S1) is formed to be higher than the side of the body (10) corresponding to the medial side of the foot (hereinafter referred to as the medial arch) (S2).

4. 2. The insole for footwear according to claim 1, wherein protrusions are formed on the outer surface of the body (10) near both ends thereof to provide an anti-slip treatment to prevent forward slippage within the footwear.

5. 2. The insole for footwear according to claim 1, wherein the outer surfaces of the body (10) near both ends are knurled to provide an anti-slip treatment to prevent forward slippage within the footwear.

6. 2. The insole of claim 1, wherein the U-shaped body (10) and cushioning material (20) have a wider groove in the heel portion, thereby increasing the area where the sole of the foot comes into contact with the insole of the footwear.

7. 2. The insole of claim 1, wherein the inner circumferential surface of the lateral arch (S1) corresponding to the lateral side of the foot is inclined relative to the inner circumferential surface of the medial arch (S2) corresponding to the medial side of the foot.

8. The footwear insole according to any one of claims 1 to 7, characterized in that the body (10) has a front-to-back length of 100 to 200 mm, a height from the bottom of the heel to the top of 5 to 50 mm, downward-facing ends at the front of both ends of the body are formed to be inclined at an angle of 0 to 15 degrees from the bottom of the heel, and a width in a plan view of 50 to 85 mm at the heel and 60 to 120 mm at both ends, and the portion of the lateral side of the foot that bends outward is configured to bend at an angle of 0 to 15 degrees.

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